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Evolution of CPMAS Under Fast Magic-angle-spinning at 100 KHz and Beyond

Overview
Publisher Elsevier
Specialty Nuclear Medicine
Date 2015 Oct 19
PMID 26476810
Citations 9
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Abstract

This article describes recent trends of high-field solid-state NMR (SSNMR) experiments for small organic molecules and biomolecules using (13)C and (15)N CPMAS under ultra-fast MAS at a spinning speed (νR) of 80-100kHz. First, we illustrate major differences between a modern low-power RF scheme using UFMAS in an ultra-high field and a traditional CPMAS scheme using a moderate sample spinning in a lower field. Features and sensitivity advantage of a low-power RF scheme using UFMAS and a small sample coil are summarized for CPMAS-based experiments. Our 1D (13)C CPMAS experiments for uniformly (13)C- and (15)N-labeled alanine demonstrated that the sensitivity per given sample amount obtained at νR of 100kHz and a (1)H NMR frequency (νH) of 750.1MHz is ~10 fold higher than that of a traditional CPMAS experiment obtained at νR of 20kHz and νH of 400.2MHz. A comparison of different (1)H-decoupling schemes in CPMAS at νR of 100kHz for the same sample demonstrated that low-power WALTZ-16 decoupling unexpectedly displayed superior performance over traditional low-power schemes designed for SSNMR such as TPPM and XiX in a range of decoupling field strengths of 5-20kHz. Excellent (1)H decoupling performance of WALTZ-16 was confirmed on a protein microcrystal sample of GB1 at νR of 80kHz. We also discuss the feasibility of a SSNMR microanalysis of a GB1 protein sample in a scale of 1nmol to 80nmol by (1)H-detected 2D (15)N/(1)H SSNMR by a synergetic use of a high field, a low-power RF scheme, a paramagnetic-assisted condensed data collection (PACC), and UFMAS.

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References
1.
Kotecha M, Wickramasinghe N, Ishii Y . Efficient low-power heteronuclear decoupling in 13C high-resolution solid-state NMR under fast magic angle spinning. Magn Reson Chem. 2007; 45 Suppl 1:S221-30. DOI: 10.1002/mrc.2151. View

2.
Weingarth M, Bodenhausen G, Tekely P . Low-power decoupling at high spinning frequencies in high static fields. J Magn Reson. 2009; 199(2):238-41. DOI: 10.1016/j.jmr.2009.04.015. View

3.
Ernst M, Meier M, Tuherm T, Samoson A, Meier B . Low-power high-resolution solid-state NMR of peptides and proteins. J Am Chem Soc. 2004; 126(15):4764-5. DOI: 10.1021/ja0494510. View

4.
Nadaud P, Helmus J, Sengupta I, Jaroniec C . Rapid acquisition of multidimensional solid-state NMR spectra of proteins facilitated by covalently bound paramagnetic tags. J Am Chem Soc. 2010; 132(28):9561-3. DOI: 10.1021/ja103545e. View

5.
Takahashi H, Kainosho M, Akutsu H, Fujiwara T . 1H-detected 1H-1H correlation spectroscopy of a stereo-array isotope labeled amino acid under fast magic-angle spinning. J Magn Reson. 2010; 203(2):253-6. DOI: 10.1016/j.jmr.2010.01.005. View